According to the report issued by Pilots for 9/11 Truth, there are major differences between the official account and the flight data:

a. The NTSB Flight Path Animation approach path and altitude does not support official events.
b. All Altitude data shows the aircraft at least 300 feet too high to have struck the light poles.
c. The rate of descent data is in direct conflict with the aircraft being able to impact the light poles and be captured in the Dept of Defense “5 Frames” video of an object traveling nearly parallel with the Pentagon lawn.
d. The record of data stops at least one second prior to official impact time.
e. If data trends are continued, the aircraft altitude would have been at least 100 feet too high to have hit the Pentagon.

[VIA]